Answer :
A natural change that currently affects or may affect the aquatic ecosystem of the bay of san francisco is the warming of the waters due to global warming and rising river levels.
What happens to water in global warming?
As a result of global warming and the increase in the emission of greenhouse gases, the heat retained in the atmosphere ends up being stored in the oceans, affecting the temperature and circulation of water, in addition to accelerating the process of melting of the polar ice caps.
With this information, we can conclude that a natural change that currently affects or may affect the aquatic ecosystem of the bay of san francisco is the warming of the waters due to global warming and rising river levels.
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